Spiral binder



Aug. l5, 1939.

S. W. DOW

SPIRAL BINDER 2 Smeets-sheet 2 26 97 (Y 3114.26 rufo/v mer ZU. DOM

m s. Ww 5 .m 4 5. 5 Z 3 d, 22 2 2 2 IP? Patented Aug. 15, 1939 UNITED STATES rATENfTg-orrice 2,169,943 SPIRAL BINDER Sumner W. Dow, Boston, Mass. Application August 8, 193.78, Serial No. 223,748

4 claims. (ol. 281-19)r This invention relates to certain new and useful improvements in spiral binders.

The primary object of the invention is to provide a spiral binder especially designed for check book use wherein a pack of at least five hundred checks may be conveniently supported within a backing or book cover.

A further object of the invention is to provide a spiral binder of the foregoing character wherein the back ofthe cover has a pair of mating plates substantially semi-circular in cross-section to provide a rounded surface at the back of the cover with the plates connected together and to the fabric of the back of the cover and provided with means for the detachable con-nection of the spiral binder which carries the leaves of the book.

With the above and other objects in view -that will become apparent as the nature of the invention is better understood, the same consists in the novel form, combination and arrangement of parts hereinafter more fully described,

shown in the accompanying Y drawings and claimed.

In the drawings:

Figure 1 is a fragmentary end elevational View of a book of the check book type equipped with the spiral binder of the present invention; Y

Figure 2 is a fragmentary end elevational View, similar to Figure l, with the top cover of the book broken away and a convolution ofthe spiral binder visible;

Figure 3 is a fragmentary top plan View with the top cover in open position illustrating the spiral binder, with a part of the attaching means for securing the spiral binder to the book back;

Figure 4 is a detail fragmentary sectionalview showing a finger struck-out from an arcuatep-late of the book backing for retaining engagement with several convolutions of the spiral binder;

Figure 5 is a detail fragmentary sectional view showing struck-out V-shaped ribs of an arcuate plate of the backing constituting guides for centering the spiral binder and arresting longitudinal movement of the spiral binder; y

Figure 6 is an inner face viewof the book binding with the covers in opened position, fragmentarily illustrated and the spiral binder removed to illustrate the devices to which the spiral binder is attached; f

Figure 7 is a longitudinal sectional view of the book backing showing the metallic backing element and the fabric strip associated therewith connected together;

Figure 8 is a longitudinal sectional view, similar to Figure 7, with the spiral binder and the book leaves carried thereby moved to an arched position to facilitate engagement oi' the convolutions of the spiral binder with the holding means l therefor carried by the book backing; and

Figure is a detail sectional View sliowing another construction for connecting together the arcuate metal plates of the book backing.

The invention in this case primarily resides in the constructionl of the book backing for the support of a spiral binder, the latter being of the usual construction and comprising a coiled wire i5 having the convolutions thereof widely spaced apart as is common in such devices with the convolutions threaded through a stack of book leaves Iii, preferably bank checks.

TheV book backing-designated in general by the reference character Il. carries top and bottom covers 8 and 9 iorthe book leavesr |3 with the top and bottom .covers 4I3 and i9 flexibly hinged in theuzonespZo to `the backing Si.

As shown in Figs'. 1` to the book backing |71 includes a, pair v.of Ael(irrigated metal plates 2| vand 22,1substantially semi-circular in cross-section and nested together, a leather or lfabric sheet 23 overlying theplate 22 while a leather for fabric sheet 24 isv interposed between theplates 2| and 22, these leathervor fabric sheets tallic plates 2| andr22 and the Afabric sheets 23 f and 24 has said parts` secured together as by an adhesive or the like and additionally Vancho-red in assembled relation by means cf rivets 25 shown in Figs. 6 to 8.

To facilitate attachment of the spiral binder |5 to the book backing, a relatively long inwardly directed finger 26 is struck-up from each end of the plate V2|. An intermediate relatively shorter linger 21 is struck-up from the plate 2| intermediatethe ends thereof and may point toward either end of said plate. Devices are carried by the plate 2| to be positioned between the convolutions of the coil binder for restraining the latter4 against longitudinal movement within the book binding and for holding the end f convolutions engaged with the fingers 26, said devices being arranged in groups at each side of the intermediate linger 2l and comprising V- shaped ribs 28 struck-up from the plate 2|.

To place the spiral binder and the book leaves fio carried thereby in engagement with the backing Il, the spiral binder with the book leaves are arched as illustrated in Figure 8, to place each end convolution of the spiral binder in position for engagement with the adjacent end finger 26 and upon attening movement of the spiral binder and book leaves, several of the end convolutions are engaged with the end lingers 26 as shown in Figure 3. The V-shaped ribs 28 are respectively positioned between adjacent convolutions of the coil binder l5 as shown in Figure 5 and by manipulation of the spiral binder intermediate its ends, one of the convolutions thereof is engaged with the intermediate struck-up linger 21. Each end of the metal plate 2l gothe` backing I1 carries a substantially circular wall 29 extending at right angles to the longitudinal axis of the backing to overlie the end of the coil binder and adjacent ends of the leaves I6, as illustrated on the drawings and give a finished appearance to the book as shown in Figs. 1 and 2. The metallic plate 22 acts as a reinforcing element for the plate 2| in the backing I 'I vto which latter plate the spiral binding with the book leaves is attached, the arcuate formation of the metal plates 2l and 22 in cross-section presenting a rounded face to the backing I1 to give a more graceful appearance thereto. When the spiral binding or backing is used in a bank check book construction and all of the checks have been used, the spiral backing may be permanently anchored in the spiral binding and said stubs may be permanently anchored in the backing by flattening or bending the intermediate finger 21 into permanent engagement within the associated convolution of the spiral binder.

In the form of invention shown in Fig. 9, the rivets 25 that tighten the several elements of the backing l1 are eliminated and in view thereof an angular nger 25a is struck-out from the arcuate backing plate 22 and passes through an opening 2Ia in the arcuate plate 2l for securing the plates 2| and 22 together.

From the above detailed description of the invention, it is believed that the construction and operation thereof will at once be apparent and while there are herein shown and described the preferred embodiments of the invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

I claim:

1. In a book backing and spiral binder, a backing comprising a pair of metallic plates and alternate fabric layei` connected together, said rnetallic plates being arcuate in cross-section with the inner metallic plate exposed, the spiral binder including a wire coil carrying a book of leaves, top and bottom covers carried by the backing and separate means carried by the exposed plate for securing the spiral binder to the backing and prevent longitudinal movements of the spiral binder relative to the backing, said means including end fingers struck-up from the exposed plate and directed towards each other for detachable engagement with the adjacent end convolutions of the spiral binder, and groupsof V- shaped ribs struck-up from the exposed plate inwardly of said iingers with the ribs of each group respectively positioned between adjacent convolutions of the spiral coil.

2. In a book backing and spiral binder, a backing comprising a pair of metallic plates and alternate fabric layer connected together, said Inetallic plates being arcuate in cross-section with the inner metallic plate exposed, the spiral binder including a wire coil carrying a book of leaves, top and bottom covers carried by the backing and separate means carried by the exposed plate for securing the spiral binder to the backing and prevent longitudinal movements of the spiral binder relative to the backing, and one of said means adapted to be manipulated for permanently securing the spiral binder to the backing, said means including end fingers struck-up from the exposed plate and directed towards each other for detachable engagement with the adjacent end convolutions of the spiral binder, and groups of V-shaped ribs struck-up from the exposed plate inwardly of said fingers with the ribs of each group respectively positioned between adjacent convolutions of the spiral coil.

3. In a book backing and spiral binder, a backing comprising a pair of metallic plates and alternate fabric layer connected together, said metallic plates being arcuate in cross-section with the inner metallic plate exposed, the spiral binderV including o. wire coil carrying a book of leaves, top and bottom covers carried by the backing and separate means carried by the exposed plate for securing the spiral binder to the backing and prevent longitudinal movements of the spiral binder relative to the backing, said means including end ngers struck-up from the exposed plate and. directed towards each other for detachable engagement with the adjacent end convolutions of the spiral binder, and groups of V-shaped ribs struck-up from the exposed plate inwardly of said lingers with the ribs of each group respectively positioned between adjacent convolutions of the spiral coil, and a at disk plate carried by each end of the exposed plate and extending at right angles therefrom toward the concaved side of said plate to overlie the adjacent end of the spiral binder and adjacent ends of the book of leaves.

4. In a book backing and spiral binder, a backing comprising a pair of metallic plates and alternate fabric layer connected together, said metallic plates being arcuate in cross-section with the inner metallic plate exposed, the spiral binder including a. wire coil carrying a book of leaves, top and bottom covers carried by the backing and separate means carried by the exposed plate for securing the spiral binder to the backing and. prevent longitudinal movements of the spiral binder relative to the backing, and one of said means adapted to be manipulated for permanently securing the spiral binder to the backing, said means including end ngers struck-up from the exposed plate and directed towards each other for detachable engagement with the adjacent end convolutions of the spiral binder, and groups of V-shaped ribs struck-up from the exposed plate inwardly of said fingers with the ribs of each group respectively positioned between adjacent convolutions of the spiral coil, and a nat disk plate carried by each. end of the exposed plate and extending at right angles therefrom toward the concaved side of said plate to overlie the adjacent end of the spiral binder and adjacent ends of the book of leaves.

SUMNER W. DOW. 

